Lucent Technologies DDM-2000 OC-12 - Page 1233

Clearing:Trouble363-206-295 TAP-103
2of1Page1997December1,Issue
FailureMultipleClear
1.
!
CAUTION:
theAlthough FAULT anonflashingorlightedbemayLEDs OLIU ,
theifinterruptedbemayservice
OLIU Theremoved.is OLIU bemays
oneontransmittingandmodeswitchingunidirectionalin
OLIU while
analyzedbemustmodeswitchtheofstateTheother.theonreceiving
anremovingbefore
OLIU.
NOTE:
itsandpackcircuitserviceawhenexistsconditionfailuremultipleA
switchthewhenorfailed,havepackcircuitprotectionassociated
circuitserviceaonoccursfailureaandlockedorinhibitedismode
pack.
theIs FAULT anonLED OLIU (lighted failedCPOLIU flashingor)
( LOSOC12inc. etc.)?,
If YES dothen, TAP-120.
If NO withcontinuethen, 2Step .
theAre2. FAULT theofpackcircuitprotectionandserviceabothonLEDs
(flashing)(notlightedtypesame failedCP)( )?
If YES withcontinuethen, 3Step .
If NO toproceedthen, 7Step .
3.
!
CAUTION:
bemustwhichswitchesoptionhavemaypackcircuitReplacement
installed.ispackcircuitthebeforesetproperly
lightedthewithpackcircuitservicetheReplace FAULT LED.
Reference: DLP-518